Phenolic Plastic Open Centre Carburettor Spacer – 1″ & 1/2″ Options

Enhance your engine’s performance and reduce heat soak with this Phenolic Plastic Open Centre Carburettor Spacer, available in 1-inch and 1/2-inch thicknesses. Designed to fit most Holley, Edelbrock, and 4-barrel carburettors, this spacer improves airflow, throttle response, and mid-range torque while keeping your fuel mixture cooler.

Product Specifications

• Material: Phenolic composite (heat-resistant plastic)

• Design: Open plenum centre

• Thickness options: 1 inch or 1/2 inch

• Fits: Holley 4150/4160, Edelbrock, and similar 4-barrel carburettors

• Mounting gaskets and hardware sold separately

Key Features & Benefits

• Reduces Heat Transfer – Phenolic material prevents manifold heat from reaching the carburettor

• Improves Airflow – Open centre design enhances intake charge distribution

• Boosts Throttle Response – Noticeable improvement in off-idle and mid-range performance

• Available in 1″ or 1/2″ Heights – Choose the best fit for your engine bay and performance needs

• Ideal for Street, Strip, and Race Applications – Reliable performance upgrade for any classic V8

Why Choose Customville American?
With decades of experience supplying performance carburettor and intake components to UK enthusiasts, we stock phenolic carb spacers locally, ensuring fast delivery and no import delays or hidden fees.